GitHub Style Activity Heatmap

A simple GitHub-style activity heatmap built with vanilla JavaScript.

Features

• Generate activity data for up to 365 days
• Random activity scores from 0 to 10
• Inactivity detection (7 consecutive zero-score days)
• Color-coded activity levels
• GitHub-style grid layout
• Uses:
  • for
  • while
  • if / switch
  • break
  • continue

Languages

• HTML
• CSS
• JavaScript